Used as a key intermediate in the synthesis of heterocyclic compounds, particularly in the preparation of benzimidazole derivatives which exhibit biological activity such as antimicrobial, antiviral, and anticancer properties. It serves as a building block in pharmaceuticals and agrochemicals due to its ability to form stable ring structures with nitrogen-containing reagents. Also employed in the development of dyes and functional materials where aromatic diamines contribute to color development and polymer stability. Its reactivity makes it suitable for use in cross-coupling reactions and sensor design for metal ion detection.